The derivative of this man's namesake operator with respect to position is equal to the derivative of that operator with respect to momentum in turn differentiated with respect to time, according to an equation from variational calculus. Kordylewski clouds may be present at some regions named for him, which are solutions to the restricted three-body problem. His namesake operator is equal to the kinetic energy minus the potential energy of a system. He also developed a method in which extreme values of a function under certain constraints are found using his namesake multipliers. For 10 points, identify this mathematician, whose multipliers are used in optimization problems.
The derivative of this man's namesake operator with respect to position is equal to the derivative of that operator with respect to momentum in turn differentiated with respect to time, according to an equation from variational calculus. Kordylewski clouds may be present at some regions named for him, which are solutions to the restricted three-body problem. His namesake operator is equal to the kinetic energy minus the potential energy of a system. He also developed a method in which extreme values of a function under certain constraints are found using his namesake multipliers. For 10 points, identify this mathematician, whose multipliers are used in optimization problems.
The derivative of this man's namesake operator with respect to position is equal to the derivative of that operator with respect to momentum in turn differentiated with respect to time, according to an equation from variational calculus.
Joseph-Louis {Lagrange} [or {Giuseppe Lodovico Lagrangia}]